TY - RPRT TI - Hydrogeology and ground-water quality, Chippewa Township, Isabella County, Michigan, 2002-05 AU - David B. Westjohn AU - Christopher J. Hoard PY - 2006 DO - 10.3133/sir20065193 UR - https://pubs.usgs.gov/publication/sir20065193 ID - sir20065193 ER -